commit 6ff3fe1364d7196f7d428a16e263e1af4a9678e7 parent 7b06c481175186f3d473911da3a2dec1fcfa82db Author: Michael Savage <mikejsavage@gmail.com> Date: Sun Aug 16 22:56:43 +0200 Remove stb_easy_font.h Diffstat:
| stb_easy_font.h | | | 220 | ------------------------------------------------------------------------------- |
diff --git a/stb_easy_font.h b/stb_easy_font.h @@ -1,220 +0,0 @@ -// stb_easy_font.h - v0.5 - bitmap font for 3D rendering - public domain -// Sean Barrett, Feb 2015 -// -// Easy-to-deploy, -// reasonably compact, -// extremely inefficient performance-wise, -// crappy-looking, -// ASCII-only, -// bitmap font for use in 3D APIs. -// -// Intended for when you just want to get some text displaying -// in a 3D app as quickly as possible. -// -// Doesn't use any textures, instead builds characters out of quads. -// -// DOCUMENTATION: -// -// int stb_easy_font_width(char *text) -// -// Takes a string without newlines and returns the horizontal size. -// -// int stb_easy_font_print(float x, float y, -// char *text, unsigned char color[4], -// void *vertex_buffer, int vbuf_size) -// -// Takes a string (which can contain '\n') and fills out a -// vertex buffer with renderable data to draw the string. -// Output data assumes increasing x is rightwards, increasing y -// is downwards. -// -// The vertex data is divided into quads, i.e. there are four -// vertices in the vertex buffer for each quad. -// -// The vertices are stored in an interleaved format: -// -// x:float -// y:float -// z:float -// color:uint8[4] -// -// You can ignore z and color if you get them from elsewhere -// This format was chosen in the hopes it would make it -// easier for you to reuse existing buffer-drawing code. -// -// If you pass in NULL for color, it becomes 255,255,255,255. -// -// Returns the number of quads. -// -// If the buffer isn't large enough, it will truncate. -// Expect it to use an average of ~270 bytes per character. -// -// If your API doesn't draw quads, build a reusable index -// list that allows you to render quads as indexed triangles. -// -// void stb_easy_font_spacing(float spacing) -// -// Use positive values to expand the space between characters, -// and small negative values (no smaller than -1.5) to contract -// the space between characters. -// -// E.g. spacing = 1 adds one "pixel" of spacing between the -// characters. spacing = -1 is reasonable but feels a bit too -// compact to me; -0.5 is a reasonable compromise as long as -// you're scaling the font up. -// -// SAMPLE CODE: -// -// Here's sample code for old OpenGL; it's a lot more complicated -// to make work on modern APIs, and that's your problem. -// -#if 0 -void print_string(float x, float y, char *text, float r, float g, float b) -{ - static char buffer[99999]; // ~500 chars - int num_quads; - - num_quads = stb_easy_font_print(x, y, text, NULL, buffer, sizeof(buffer)); - - glColor3f(r,g,b); - glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, GL_FLOAT, 16, buffer); - glDrawArrays(GL_QUADS, 0, num_quads*4); - glDisableClientState(GL_VERTEX_ARRAY); -} -#endif - -#ifndef INCLUDE_STB_EASY_FONT_H -#define INCLUDE_STB_EASY_FONT_H - -#include <stdlib.h> - -struct { - unsigned char advance; - unsigned char h_seg; - unsigned char v_seg; -} stb_easy_font_charinfo[96] = { - { 5, 0, 0 }, { 3, 0, 0 }, { 5, 1, 1 }, { 7, 1, 4 }, - { 7, 3, 7 }, { 7, 6, 12 }, { 7, 8, 19 }, { 4, 16, 21 }, - { 4, 17, 22 }, { 4, 19, 23 }, { 23, 21, 24 }, { 23, 22, 31 }, - { 20, 23, 34 }, { 22, 23, 36 }, { 19, 24, 36 }, { 21, 25, 36 }, - { 6, 25, 39 }, { 6, 27, 43 }, { 6, 28, 45 }, { 6, 30, 49 }, - { 6, 33, 53 }, { 6, 34, 57 }, { 6, 40, 58 }, { 6, 46, 59 }, - { 6, 47, 62 }, { 6, 55, 64 }, { 19, 57, 68 }, { 20, 59, 68 }, - { 21, 61, 69 }, { 22, 66, 69 }, { 21, 68, 69 }, { 7, 73, 69 }, - { 9, 75, 74 }, { 6, 78, 81 }, { 6, 80, 85 }, { 6, 83, 90 }, - { 6, 85, 91 }, { 6, 87, 95 }, { 6, 90, 96 }, { 7, 92, 97 }, - { 6, 96,102 }, { 5, 97,106 }, { 6, 99,107 }, { 6,100,110 }, - { 6,100,115 }, { 7,101,116 }, { 6,101,121 }, { 6,101,125 }, - { 6,102,129 }, { 7,103,133 }, { 6,104,140 }, { 6,105,145 }, - { 7,107,149 }, { 6,108,151 }, { 7,109,155 }, { 7,109,160 }, - { 7,109,165 }, { 7,118,167 }, { 6,118,172 }, { 4,120,176 }, - { 6,122,177 }, { 4,122,181 }, { 23,124,182 }, { 22,129,182 }, - { 4,130,182 }, { 22,131,183 }, { 6,133,187 }, { 22,135,191 }, - { 6,137,192 }, { 22,139,196 }, { 5,144,197 }, { 22,147,198 }, - { 6,150,202 }, { 19,151,206 }, { 21,152,207 }, { 6,155,209 }, - { 3,160,210 }, { 23,160,211 }, { 22,164,216 }, { 22,165,220 }, - { 22,167,224 }, { 22,169,228 }, { 21,171,232 }, { 21,173,233 }, - { 5,178,233 }, { 22,179,234 }, { 23,180,238 }, { 23,180,243 }, - { 23,180,248 }, { 22,189,248 }, { 22,191,252 }, { 5,196,252 }, - { 3,203,252 }, { 5,203,253 }, { 22,210,253 }, { 0,214,253 }, -}; - -unsigned char stb_easy_font_hseg[214] = { - 97,37,69,84,28,51,2,18,10,49,98,41,65,25,81,105,33,9,97,1,97,37,37,36, - 81,10,98,107,3,100,3,99,58,51,4,99,58,8,73,81,10,50,98,8,73,81,4,10,50, - 98,8,25,33,65,81,10,50,17,65,97,25,33,25,49,9,65,20,68,1,65,25,49,41, - 11,105,13,101,76,10,50,10,50,98,11,99,10,98,11,50,99,11,50,11,99,8,57, - 58,3,99,99,107,10,10,11,10,99,11,5,100,41,65,57,41,65,9,17,81,97,3,107, - 9,97,1,97,33,25,9,25,41,100,41,26,82,42,98,27,83,42,98,26,51,82,8,41, - 35,8,10,26,82,114,42,1,114,8,9,73,57,81,41,97,18,8,8,25,26,26,82,26,82, - 26,82,41,25,33,82,26,49,73,35,90,17,81,41,65,57,41,65,25,81,90,114,20, - 84,73,57,41,49,25,33,65,81,9,97,1,97,25,33,65,81,57,33,25,41,25, -}; - -unsigned char stb_easy_font_vseg[253] = { - 4,2,8,10,15,8,15,33,8,15,8,73,82,73,57,41,82,10,82,18,66,10,21,29,1,65, - 27,8,27,9,65,8,10,50,97,74,66,42,10,21,57,41,29,25,14,81,73,57,26,8,8, - 26,66,3,8,8,15,19,21,90,58,26,18,66,18,105,89,28,74,17,8,73,57,26,21, - 8,42,41,42,8,28,22,8,8,30,7,8,8,26,66,21,7,8,8,29,7,7,21,8,8,8,59,7,8, - 8,15,29,8,8,14,7,57,43,10,82,7,7,25,42,25,15,7,25,41,15,21,105,105,29, - 7,57,57,26,21,105,73,97,89,28,97,7,57,58,26,82,18,57,57,74,8,30,6,8,8, - 14,3,58,90,58,11,7,74,43,74,15,2,82,2,42,75,42,10,67,57,41,10,7,2,42, - 74,106,15,2,35,8,8,29,7,8,8,59,35,51,8,8,15,35,30,35,8,8,30,7,8,8,60, - 36,8,45,7,7,36,8,43,8,44,21,8,8,44,35,8,8,43,23,8,8,43,35,8,8,31,21,15, - 20,8,8,28,18,58,89,58,26,21,89,73,89,29,20,8,8,30,7, -}; - -typedef struct -{ - unsigned char c[4]; -} stb_easy_font_color; - -static int stb_easy_font_draw_segs(float x, float y, unsigned char *segs, int num_segs, int vertical, stb_easy_font_color c, char *vbuf, int vbuf_size, int offset) -{ - int i,j; - for (i=0; i < num_segs; ++i) { - int len = segs[i] & 7; - x += (float) ((segs[i] >> 3) & 1); - if (len && offset+64 <= vbuf_size) { - float y0 = y + (float) (segs[i]>>4); - for (j=0; j < 4; ++j) { - * (float *) (vbuf+offset+0) = x + (j==1 || j==2 ? (vertical ? 1 : len) : 0); - * (float *) (vbuf+offset+4) = y0 + ( j >= 2 ? (vertical ? len : 1) : 0); - * (float *) (vbuf+offset+8) = 0.f; - * (stb_easy_font_color *) (vbuf+offset+12) = c; - offset += 16; - } - } - } - return offset; -} - -float stb_easy_font_spacing_val = 0; -static void stb_easy_font_spacing(float spacing) -{ - stb_easy_font_spacing_val = spacing; -} - -static int stb_easy_font_print(float x, float y, char *text, unsigned char color[4], void *vertex_buffer, int vbuf_size) -{ - char *vbuf = (char *) vertex_buffer; - float start_x = x; - int offset = 0; - - stb_easy_font_color c = { 255,255,255,255 }; // use structure copying to avoid needing depending on memcpy() - if (color) { c.c[0] = color[0]; c.c[1] = color[1]; c.c[2] = color[2]; c.c[3] = color[3]; } - - while (*text && offset < vbuf_size) { - if (*text == '\n') { - y += 12; - x = start_x; - } else { - unsigned char advance = stb_easy_font_charinfo[*text-32].advance; - float y_ch = advance & 16 ? y+1 : y; - int h_seg, v_seg, num_h, num_v; - h_seg = stb_easy_font_charinfo[*text-32 ].h_seg; - v_seg = stb_easy_font_charinfo[*text-32 ].v_seg; - num_h = stb_easy_font_charinfo[*text-32+1].h_seg - h_seg; - num_v = stb_easy_font_charinfo[*text-32+1].v_seg - v_seg; - offset = stb_easy_font_draw_segs(x, y_ch, &stb_easy_font_hseg[h_seg], num_h, 0, c, vbuf, vbuf_size, offset); - offset = stb_easy_font_draw_segs(x, y_ch, &stb_easy_font_vseg[v_seg], num_v, 1, c, vbuf, vbuf_size, offset); - x += advance & 15; - x += stb_easy_font_spacing_val; - } - ++text; - } - return (unsigned) offset/64; -} - -static int stb_easy_font_width(char *text) -{ - float len = 0; - while (*text) { - len += stb_easy_font_charinfo[*text-32].advance & 15; - len += stb_easy_font_spacing_val; - ++text; - } - return (int) ceil(len); -} -#endif